US 12,008,192 B2
Display panel, touch test method, and electronic device
Jian Ye, Wuhan (CN)
Assigned to Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan (CN)
Appl. No. 17/284,457
Filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan (CN)
PCT Filed Feb. 25, 2021, PCT No. PCT/CN2021/077777
§ 371(c)(1), (2) Date Apr. 10, 2021,
PCT Pub. No. WO2022/147892, PCT Pub. Date Jul. 14, 2022.
Claims priority of application No. 202110022686.4 (CN), filed on Jan. 8, 2021.
Prior Publication US 2024/0111378 A1, Apr. 4, 2024
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); G09G 3/00 (2006.01)
CPC G06F 3/04164 (2019.05) [G06F 3/0412 (2013.01); G06F 3/0443 (2019.05); G09G 3/006 (2013.01); G09G 2330/12 (2013.01); G09G 2354/00 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a substrate;
touch test terminals;
a multiplexing circuit, wherein the multiplexing circuit comprises an input end correspondingly connected to one of the touch test terminals;
touch units, wherein one of the touch units is correspondingly connected to an output end of the multiplexing circuit; and
a touch display chip, wherein one of touch output pins of the touch display chip is correspondingly connected to one of the touch units;
wherein, the touch test terminals and the multiplexing circuit are located between the substrate and the touch display chip, and the touch display chip at least partially overlaps the touch test terminals and the multiplexing circuit;
wherein the touch display chip comprises N touch output groups, one of the touch output groups comprises a plurality of the touch output pins, a distance between two adjacent touch output pins is defined as a first distance, a distance between two adjacent touch output groups is defined as a second distance, and the first distance is less than the second distance;
wherein the multiplexing circuit comprises N multiplexing sub-circuits, and one of the multiplexing sub-circuits is disposed vertically opposite to one of the touch output groups; and
wherein N is an integer greater than or equal to 2.